- Companies
- Electricians
- Chatham
- K J & Sons Construction Limited
K J & Sons Construction Limited
- Company number
- 09603684
- Incorporated
- 21 May 201511 years trading
- Registered office
- Unit 20 Hopewell Business Centre, 105 Hopewell Drive, Chatham, Kent, ME5 7DX
- Nature of business
- Electrical installation
K J & Sons Construction Limited is a 11-year-old private limited company registered in Chatham, company number 09603684, one of 104 electrical contractors in Chatham. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for K J & Sons Construction LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £1,452 (-4.5%) on the year before, to £31K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £41K against £25K owed within a year: 1.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £31K | £41K | £25K | 2 | |
| 31 Mar 2024 | £32K | £40K | £21K | 2 | |
| 31 Mar 2023 | £26K | £30K | £22K | 1 | |
| 31 Mar 2022 | £30K | £37K | £23K | 1 | |
| 31 Mar 2021 | £23K | £39K | £25K | 1 | |
| 31 Mar 2020 | £39K | £55K | £28K | 1 | |
| 31 Mar 2019 | £39K | £55K | £26K | 1 | |
| 31 Mar 2018 | £26K | £39K | £18K | ||
| 31 Mar 2017 | £20K | £39K | £19K | ||
| 31 Mar 2016 | £10K | £7,431 | £21K | £12K |
Where K J & Sons Construction Limited is registered
The registered office is in Chatham (ME5), in the Medway local authority area, South East. Show ME5 7DX on a map.
Other trade companies in ME5
- M J B Joinery LimitedJoiners and carpenters
- The Tradeswoman Consultancy LtdBuilders
- Paf Automotive LimitedMotor traders
- Kent Heritage Roof Cleaning Services LtdCleaning companies
- Thedetailworld LtdCleaning companies
- White Knight Restorations LimitedBuilders
- Titan Pipe LtdPlumbers and heating engineers
- JRB Developers LtdProperty developers
Also registered at this address
15 other companies use the same registered office as K J & Sons Construction Limited.
- Albatross Carpentry LimitedJoiners and carpenters
- Compass Windows LtdGlaziers
- Creative Carpentry Services LimitedSpecialist contractors
- FDL Utility Services LimitedBuilders
- KH Mobile Service LimitedMechanics and garages
- Mark Piesley LtdFinishing trades
- Martin Robinson Carpentry LtdJoiners and carpenters
- Multi Hoses LimitedMechanics and garages
- Multi Tyres LimitedMotor traders
- Multilay Utilities S E LimitedCivil engineering
- P J Butler LtdCleaning companies
- Pointaccess LimitedScaffolders
- Setterfield LimitedFinishing trades
- Topps Scaffolding LimitedScaffolders
- Wel Commercials LimitedMechanics and garages
What happens if K J & Sons Construction Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 09603684
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 May 2015 (11 years ago)
- Registered office
- Unit 20 Hopewell Business Centre, 105 Hopewell Drive, Chatham, Kent, ME5 7DX
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 20 May 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Chatham
Other active electrical contractors registered in Chatham.
- K&L Electrical Services Ltd2023
- Keas Electrical Limited2015
- Kenick Ltd2017
- Kushkind Electrical Ltd2025
- Laing Fire Limited2007
- Leumas Electrical Services Limited2026
- M Fisher Electrical Services Ltd2017
- M.P.Fire Limited2009
All electrical contractors in Chatham · All trades in Chatham · Electricians across the UK
Frequently asked questions
When are K J & Sons Construction Limited's accounts due?
K J & Sons Construction Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is K J & Sons Construction Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is K J & Sons Construction Limited still trading?
K J & Sons Construction Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does K J & Sons Construction Limited do?
K J & Sons Construction Limited is registered under Electrical installation (SIC 43210).
How old is K J & Sons Construction Limited?
K J & Sons Construction Limited was incorporated on 21 May 2015, 11 years ago.
What is the penalty if K J & Sons Construction Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View K J & Sons Construction Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.